3 Matching Results
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Comfort and the Like.
Patent for a loosely woven material that covers household furnishings so it can be easily cleaned and then reattached.
Date:
July 27, 1920
Creator:
McNatt, Lucie R.
System:
The Portal to Texas History
Valve Control for Radiator Drain-Cocks.
Patent for "controlling devices for operating the valves of radiator drain cocks and for cleaning the drain cock pipe, and the object is to provide a convenient device by which the drain cock valve can be easily and quickly closed or opened and by which the drain pipe can be cleaned and kept cleaned." (lines 10-16)
Date:
July 27, 1920
Creator:
Brandt, Herman
System:
The Portal to Texas History
Rotary Engine.
Patent for an improved rotary engine which overheats less, reduces the space between the piston and cylinder, and is easy to construct and operate.
Date:
April 27, 1920
Creator:
Jefferies, Charlie Q.
System:
The Portal to Texas History